Originally Posted by
puckdaddy
I'm glad y'all mentioned that. I've come across some rings that are smooth and wondered if they'd work. So are you saying the smooth rings definitely will not work?
I have used that type of chainring for decades, But my Front Derailleurs have never been Indexed, they're friction levers.
& I am realistic on shifting speeds , so by reading the terrain ahead, anticipate the gear I need before I need it, whenever I can.
the parts Engineers have decided the ramp and pin locations get the shifting even a partial second faster
if you pair them as they designed them ... so the features of a 50t outer would be different for a 30-39-50
than it would be for a 34-50 double or even 39-53 vs 42-53..